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Finding the Fourth Proportional to 7,216.26, 9,958.42 and 3,904.26

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Solution

The fourth proportional to 7,216.26, 9,958.42 and 3,904.26 is: 5,387.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,216.26 : 9,958.42 = 3,904.26 : x
  2. Step 2: Convert to fraction form
    7,216.26/9,958.42 = 3,904.26/x
  3. Step 3: Cross multiply
    7,216.26x = 9,958.42 × 3,904.26
  4. Step 4: Simplify right side
    7,216.26x = 38,880,260.87
  5. Step 5: Solve for x
    x = 38,880,260.87/7,216.26
  6. Step 6: Final answer
    x = 5,387.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.